George e



(No Model.)

G. E. TUFFLEY. POWER HAMMER.

No. 467,565. Patented Jan. 26, 1892.

UNITED STATES PATENT OFFICE.

GEORGE E. TUFFLEY, OF MOLINE, ILLINOIS, ASSIGNOR OF ON E-HALF TO WVILLIAM OLENDENIN, OF SAME PLACE.

POWER-HAM M ER.

SPECIFICATION forming part of Letters Patent No. 467,565, dated January 26, 1892.

Application filed March 30, 1891.

T0 at whom it may concern.-

Be it known that I, GEORGE E. TUFFLEY, a citizen of the United States, residing at Moline, in the county of Rock Island and State of Illinois, have invented certain new and useful Improvements in Power-Hammers 5 and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use 13116831116.

My invention relates to improvements in power-hammers, and the result desired by my improvement is strength, durability, simplicity, efficiency, and adjustment to any desired stroke, with less danger to the operator on account of few bolts to work loose and fly 0%. There is no reaction as in other hammers.

All lost motion can be readily taken up. My

improvement in the spring at the power end can be adjusted by the spring, set tight or loose, between the arms 0 0. Thus ahammer with a one-hundred-pound ram, to be set so as to have two inches (more or less) stroke at the ram, can be run at a high speed without injury to the hammer or throwing the ram in fast motion. I attain this result desired by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a perspective view of the machine complete as it appears when in working order. Fig. 2 is a front view showing the hammer-head or ram cushion b, and the manner of attaching the cushion to the hammerhead or ram, and also the U end of the helve A with cushion attached. Fig. 3 is a top and side view of the helve A, showing the arms 0 c, fitted to hold the springd and the U end of helve and thc aXlehole. Fig. 4: shows detailed views of the sundry parts of my invention.

Similar letters refer to different parts throughout the several views.

The helve A in Fig. 3 is made and formed at the power or rear end with arms 0 c, fitted to hold spring cl. IIelve A also has a hole through it at a proper distance from the ends which isto receive the axle, and also has formed at the hammer-head or ram end a U- shaped slot for the purpose of receiving the cushion 1). Spring cl is made of two or more Serial No. 387.073. (No model.)

layers of leather with one piece of spring-steel placed between the leather. The spring (1 has holes at a proper distance from the ends, made in oblong form for the purpose of tightening or loosening the spring. The holes passing through the leather and steel at the ends are to receive headless rivets of proper length and thickness, in order to secure and hold the leather and steel compact and insure uniform action. The spring (Z is attached to arms 0 c by metal, caps E E, placed on top of spring and pressed against the leather and rivets and held by threadedbolts, which are passed from the under side of arms 0 0 up and through spring d in the oblong holes and caps E E, and firmly secured by heavy nuts. Pitman O is made and formed at one end with a head, and said head is formed with an eye of proper size to be slipped loosely onto the spring d and placed at the middle of said spring. The lower round part 9 of the pit-- man 0 is received in the eccentricsleeve 'i, and held therein by a set-screw h upon the eccentric-sleeve 7c, and between its flanges, is fitted the sleeve 1', as shown.

The eccentric-sleeve k is made with two flanges, one 011 each end, which are made the proper width to allow, also to have threaded holes, to receive two set-screws, one in each flange. Said set-screws pass into the flangesand the ends of the set-screws are screwed into the holes in the eccentric j, keyed onto the hammer-shaft (or drive-pulley shaft) on the frame or bed. This eccentric j has countersunk holes at a proper depth and at aproper distance apart to receive the set-screws which are screwed into the flanges of eccentric it, thus adjusting the hammer-head or ram from a short to a longer stroke and from a long to a shorter stroke.

The axle c has threads at a proper distance from the ends and center. It is placed into the helve at a proper distance from its ends, and one or more nuts are screwed onto the axle and firmly against the helve. Thus after a few years service one of the nuts can be taken off and a thin washer can be placed on the axle, and the nut replaced on the axle and all lost motion is then taken up between the axle-nuts and the hammer-frame.

Cushion b, Fig. 2, is made of two or more layers of leather, together with one layer of spring-steel, and is connected together and held by headless rivets of the proper length and thickness at the proper distance from the ends. Being so constructed, cushion b is placed into the head of hammer or ram, as shown in drawing, Fig. 2, and is placed into the hammer or ram head from the inner side (the side the cushion receives the U end of the helve from,) and the cushion Z) is held into the head by two small keys, one on each end of the cushion. The keys are to bear onto the ends of the rivets placed in the cushion, and thus insuring the cushion being held in a firm and secure manner. The place in the hammer-header ram is made narrower at the outside of the head and a trifle wider at the inside, (or the side the cushion receives the helve from.) Thus the cushion is doubly secured in its position and cannot work out of its place at the front side of the hammer-head, and the U end of the helve will not admit of the cushion working out of the hammer-head on the side the cushion receives the U end of the helve from and will remain in its place with or without the keys. Cushion 1), being so constructed and held, prevents any harmful jar to the helve from the U end of the axle.

The hammer-head or ram is set with the dies one-half inch (more or less) apart, thus also preventing and insuring the cushion from early destruction or wear from the helve, as the give in the cushion is small, yet enough to protect both the'helve and the cushion.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The power-hammer having the helve or beam, the adjustable spring, and the pitman, in combination with the eccentric-sleeve 1', the eccentric j, and sleeve 70, substantially as set forth.

2. The power-hammer having the cushion b, the adjustable spring, and the pitman, in combination with the eccentric-sleeve i, the eccentric j, sleeve 76, and the helve or beam, substantially as set forth.

3. The power-hammer having the helve or beam and the cushion I) let into the hammerhead and received in the U-slot of said helve or beam, in combination with the adjustable spring, the pitman, the eccentric-sleeve i, the eccentric j, and the sleeve 70, substantially as specified.

In testimony whereof, I have affixed my sig-.

nature in presence of two witnesses.

GEORGE E. TUFFLEY.

Witnesses:

CHARLES PIPER, BEDEN W001). 

